The red moon was in the sky, and Ukenana disappeared in front of Eric. Everyone thought she was dead, but she fell into the realm of the underworld, a world between devoured souls. A five-story prison with no one leaving for three hundred years. Travel through the memory corridor, freeze the battlefield for hundreds of years, shatter the illusion in the mirror, and face the source of the stubborn stone. She wants to go back, not for the mission, but for the unfinished sentence of "advance and retreat together."